Clutch.



No. 706,39I.

Patented Aug. 5, |902.

W. D. COUKSO-N.

CL U T CH (Applicnticn led July 2, 1901.)

2 Sheets-Sheet I.

(No Model.)

No. 706,39I. Patented Aug. 5, |902.

W. D. CDKSON.

CLUTCH.

(Application filed July 2, 1901.

Udo Model.)

2 Shouts-Sheet 2.

me Moms versus co. nom-umn.. wumnfw, u4 c,

tran STATES PATENT OFFICE.

WILLIAM DAlVSON COOKSON, OF GATESHEAD, ENGLAND, ASSIGNOR TO CLARKECHAPMAN @t COMPANY, LIMITED, OE GATESl-IEAD, ENGLAND.

CLUTCH.

SPECIFICATION forming part of Letters Patent No. 706,391, dated August5, 1902.

Application led .Iuly 2,1901. Serial No. 66,900. (No model.)

To all whom it' may concern:

Be it known that l, WILLIAM DAWSON COOKSON, a subject of the King ofGreat Britain and Ireland, residing at Gateshead-on-Tyne,inthecountyofDurham,England,have invented Improvements in Clutches,of which the following is a specification.

This invention relates to clutches suitable for various uses andespecially for putting 1o the cable holder or lifter of a windlass in orout of engagement with the driving-wheel.

My improved clutch comprises in combination a movable part clutchadapted to be moved into and out of engagement with another part clutchaccording to requirement, a ring or strap with female screws, spindlesformed with male screws that engage with said female screws andrwhichcan rotatein and are held longitudinally by suitable bearzo ings, andgear-wheels that are engaged by suitable hand-operated mechanism commonto both of said gear-wheels, so as to actuate the movable part clutch,the whole so constructed and arranged that by actuating said z5mechanism the said part clutch can be moved into gear or out of gearwith' its fellow part clutch and that when either in or out of geartherewith it will be so retained by said ar# rangement of mechanism.

3o In a windlass embodying this invention theK ring or strap is mountedin a groove formed in a boss on the cable holder or lifter whichconstitutes the movable part clutch. The screw-spindle bearings arecarried in an outer frame, and the gear-wheels on said spindles may beeither spur or worm wheels.

Referring to the accompanying illustrativedrawings, Figure l shows inend elevation my invention as applied in a Windlass. Fig.

4o 2 is partly a plan and part-ly a section on the line X X of Fig. l.

In the arrangement illustrated, A is a part clutch constituting a cableholder or lifter.

It is mounted on a main shaft B, supported in bearings in the frame F.The part A has at one end a boss D, that is formed with a groove E, inwhich is located a ring or strap G, formed with recesses into which nutsIl and H are jltted.V Y

5o J J are spindles that are carried in bearings in the outer frame Fand are screw-threaded -the spur wheels.

at their inner ends to correspond with and are engaged with the nuts Hand I-l, and at or near their outer ends said spindles have fixedthereon spur-wheels K and K', which 55 gear with a central spur-wheel L,that is loosely mounted on the main shaft B and is formed as ahand-wheel by turning, which when desired the spur-wheels K K may berotated in the required direction to put the 6o part clutch A in oroutrof gear with the other part clutchwhich is on the driving-wheel M.The hand-wheel extends beyond and incloses With this arrangement thepart clutch A can only be moved lengthwise of the shaft by turning thehand-wheel and will be retained in the position along .shaft B towhichit may have been moved.

l. A clutch comprising in combination a 7o part clutch connected to ashaft so as to rotate therewith, a second part clutch mounted upon saidshaft and adapted to be moved along it into or out of engagement withsaid other part, a groove in said movable part, a ring or strap locatedin said groove and surrounding said longitudinally movable part, leavingsame free to rotate independently but which ring or strap is adaptedwhen itself moved lengthwise of the shaft to move said part along 8owith it, screw-threaded openings or nuts in said ring or strap,screw-spindles that extend through said openings or nuts,bearingswherein said spindles are mounted and can rotate and whereby they areheld longitudinally,

lspur-wheels on said spindles and in gear with said wheels a centralspur-wheel adapted through said' spur-wheels, spindles and ringdinally-movalole part, leaving same free to roroo tate independently butwhich ring or strap is adapted when itself moved lengthwise of thethrough said spur-Wheels, spindles and ring to the movable part,substantially as described.

Signed at Gateshead, in the county of Durham, England, this 19th day ofJune, 1901.

WILLIAM DAWSON COOKSON.

Witnesses:

ARCHIBALD ROXBURGH, THOMAS HENDERSON.

